Answer:
+ 1
Step-by-step explanation:
Given
x² + 2x = 9
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(1)x + 1² = 9 + 1²
(x + 1)² = 10
X = 28
you divide 112 by 4 to get 28
Answer:
Step-by-step explanation:
10+100=1000
20+100=2000
Hi, there.
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Hope the answer - and explanation - made sense,
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